Issue |
EPL
Volume 140, Number 2, October 2022
|
|
---|---|---|
Article Number | 26004 | |
Number of page(s) | 6 | |
Section | Condensed matter and materials physics | |
DOI | https://doi.org/10.1209/0295-5075/ac9b88 | |
Published online | 07 November 2022 |
Interplay of 3d and 4f electrons in ZrCuSiAs-type oxypnictide CeCrAsO
1 Zhejiang University of Water Resources and Electric Power - Hangzhou 310018, PRC
2 Zhejiang Province Key Laboratory of Quantum Technology and Device, and School of Physics, Zhejiang University Hangzhou 310027, PRC
3 Zhejiang California International NanoSystems Institute, Zhejiang University - Hangzhou 310027, PRC
4 Collaborative Innovation Centre of Advanced Microstructures, Nanjing University - Nanjing 210093, PRC
(a) E-mail: 0013840@zju.edu.cn (corresponding author)
(b) E-mail: zhuan@zju.edu.in (corresponding author)
Received: 27 March 2022
Accepted: 19 October 2022
We investigated the physical properties of ZrCuSiAs-type oxypnictide CeCrAsO polycrystals by electrical transport, magnetic and thermodynamic measurements below room temperature. No superconductivity is found down to the lowest temperature measured (1.8 K). A first-order magnetic transition is consistently observed at . A Schottky anomaly is observed around 14 K and the ground-state doublet of Ce ions splits by 3.75 meV. It is suggested that the magnetic moments of Cr ions, which show long-range order above room temperature, reorient at
. Meanwhile the generated internal magnetic field induces a short-range antiferromagnetic order of Ce moments, serving as a good probe for demonstrating the interplay between Cr-3 d and Ce-4 f electrons and further investigating the magnetism of Cr ions.
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